241 hitters with enough plate appearances for the split to mean something, ranked by the gap between their production against left-handed and right-handed pitching. wRC+ is an index where 100 is league average and about 15 points separate an average hitter from a good one — so the 153 players above a 20-point gap are, in practice, two different hitters depending on the arm.
These 197 hitters have played, but not enough for a split by pitcher hand to be worth ranking. Roughly a quarter of plate appearances come against a left-hander, so a part-time bat can show a 300 wRC+ against left-handed pitching on thirty trips — a number that describes a month, not a hitter. Their pages carry the same data, without the ranking.